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GET /api/patches/810449/?format=api
{ "id": 810449, "url": "http://patchwork.ozlabs.org/api/patches/810449/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/5defe9fcfacaae68ebbdb76b3ec4b565bf4e7d1c.1504688205.git.mprivozn@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<5defe9fcfacaae68ebbdb76b3ec4b565bf4e7d1c.1504688205.git.mprivozn@redhat.com>", "list_archive_url": null, "date": "2017-09-06T08:58:54", "name": "[v3,2/2] watchdog: Allow setting action on the fly", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "6746fd6cb77e1de387a1a3124fbc0a39819ce55b", "submitter": { "id": 11888, "url": "http://patchwork.ozlabs.org/api/people/11888/?format=api", "name": "Michal Prívozník", "email": "mprivozn@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/5defe9fcfacaae68ebbdb76b3ec4b565bf4e7d1c.1504688205.git.mprivozn@redhat.com/mbox/", "series": [ { "id": 1726, "url": "http://patchwork.ozlabs.org/api/series/1726/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=1726", "date": "2017-09-06T08:58:53", "name": "watchdog: Allow setting action on the fly", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/1726/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/810449/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/810449/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)", "ext-mx07.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com", "ext-mx07.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=mprivozn@redhat.com" ], "Received": [ "from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xnHdD40f4z9sBZ\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 6 Sep 2017 19:01:34 +1000 (AEST)", "from localhost ([::1]:35071 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dpWDD-0004u2-Ou\n\tfor incoming@patchwork.ozlabs.org; Wed, 06 Sep 2017 05:01:31 -0400", "from eggs.gnu.org ([2001:4830:134:3::10]:58272)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <mprivozn@redhat.com>) id 1dpWAv-0003Zl-O1\n\tfor qemu-devel@nongnu.org; Wed, 06 Sep 2017 04:59:12 -0400", "from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <mprivozn@redhat.com>) id 1dpWAp-0000o5-GZ\n\tfor qemu-devel@nongnu.org; Wed, 06 Sep 2017 04:59:09 -0400", "from mx1.redhat.com ([209.132.183.28]:51942)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <mprivozn@redhat.com>) id 1dpWAp-0000nb-7J\n\tfor qemu-devel@nongnu.org; Wed, 06 Sep 2017 04:59:03 -0400", "from smtp.corp.redhat.com\n\t(int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 2CE5EC04B32C\n\tfor <qemu-devel@nongnu.org>; Wed, 6 Sep 2017 08:59:02 +0000 (UTC)", "from moe.brq.redhat.com (unknown [10.43.2.192])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 541377B9DC;\n\tWed, 6 Sep 2017 08:59:01 +0000 (UTC)" ], "DMARC-Filter": "OpenDMARC Filter v1.3.2 mx1.redhat.com 2CE5EC04B32C", "From": "Michal Privoznik <mprivozn@redhat.com>", "To": "qemu-devel@nongnu.org", "Date": "Wed, 6 Sep 2017 10:58:54 +0200", "Message-Id": "<5defe9fcfacaae68ebbdb76b3ec4b565bf4e7d1c.1504688205.git.mprivozn@redhat.com>", "In-Reply-To": [ "<cover.1504688205.git.mprivozn@redhat.com>", "<cover.1504688205.git.mprivozn@redhat.com>" ], "References": [ "<cover.1504688205.git.mprivozn@redhat.com>", "<cover.1504688205.git.mprivozn@redhat.com>" ], "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.14", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.31]);\n\tWed, 06 Sep 2017 08:59:02 +0000 (UTC)", "X-detected-operating-system": "by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]", "X-Received-From": "209.132.183.28", "Subject": "[Qemu-devel] [PATCH v3 2/2] watchdog: Allow setting action on the\n\tfly", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<http://lists.nongnu.org/archive/html/qemu-devel/>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "armbru@redhat.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Currently, the only time that users can set watchdog action is at\nthe start as all we expose is this -watchdog-action command line\nargument. This is suboptimal when users want to plug the device\nlater via monitor. Alternatively, they might want to change the\naction for already existing device on the fly.\n\nAt the same time, drop local redefinition of the actions enum in\nwatchdog.h in favour of the ones defined in schema and thus kills\ncode duplication.\n\nInspired by: https://bugzilla.redhat.com/show_bug.cgi?id=1447169\n\nSigned-off-by: Michal Privoznik <mprivozn@redhat.com>\n---\n hw/watchdog/watchdog.c | 50 +++++++++++++++++++++++------------------------\n hw/watchdog/wdt_diag288.c | 6 +++---\n include/sysemu/watchdog.h | 12 ++----------\n qapi-schema.json | 9 +++++++++\n 4 files changed, 39 insertions(+), 38 deletions(-)", "diff": "diff --git a/hw/watchdog/watchdog.c b/hw/watchdog/watchdog.c\nindex 358d79804d..2d21eaba28 100644\n--- a/hw/watchdog/watchdog.c\n+++ b/hw/watchdog/watchdog.c\n@@ -29,8 +29,11 @@\n #include \"qapi-event.h\"\n #include \"hw/nmi.h\"\n #include \"qemu/help_option.h\"\n+#include \"qmp-commands.h\"\n+#include \"qapi/qmp/qerror.h\"\n+#include \"qapi/util.h\"\n \n-static int watchdog_action = WDT_RESET;\n+static WatchdogAction watchdog_action = WATCHDOG_ACTION_RESET;\n static QLIST_HEAD(watchdog_list, WatchdogTimerModel) watchdog_list;\n \n void watchdog_add_model(WatchdogTimerModel *model)\n@@ -77,27 +80,16 @@ int select_watchdog(const char *p)\n \n int select_watchdog_action(const char *p)\n {\n- if (strcasecmp(p, \"reset\") == 0)\n- watchdog_action = WDT_RESET;\n- else if (strcasecmp(p, \"shutdown\") == 0)\n- watchdog_action = WDT_SHUTDOWN;\n- else if (strcasecmp(p, \"poweroff\") == 0)\n- watchdog_action = WDT_POWEROFF;\n- else if (strcasecmp(p, \"pause\") == 0)\n- watchdog_action = WDT_PAUSE;\n- else if (strcasecmp(p, \"debug\") == 0)\n- watchdog_action = WDT_DEBUG;\n- else if (strcasecmp(p, \"none\") == 0)\n- watchdog_action = WDT_NONE;\n- else if (strcasecmp(p, \"inject-nmi\") == 0)\n- watchdog_action = WDT_NMI;\n- else\n- return -1;\n+ int action;\n \n+ action = qapi_enum_parse(&WatchdogAction_lookup, p, -1, NULL);\n+ if (action < 0)\n+ return -1;\n+ qmp_watchdog_set_action(action, &error_abort);\n return 0;\n }\n \n-int get_watchdog_action(void)\n+WatchdogAction get_watchdog_action(void)\n {\n return watchdog_action;\n }\n@@ -108,21 +100,21 @@ int get_watchdog_action(void)\n void watchdog_perform_action(void)\n {\n switch (watchdog_action) {\n- case WDT_RESET: /* same as 'system_reset' in monitor */\n+ case WATCHDOG_ACTION_RESET: /* same as 'system_reset' in monitor */\n qapi_event_send_watchdog(WATCHDOG_ACTION_RESET, &error_abort);\n qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);\n break;\n \n- case WDT_SHUTDOWN: /* same as 'system_powerdown' in monitor */\n+ case WATCHDOG_ACTION_SHUTDOWN: /* same as 'system_powerdown' in monitor */\n qapi_event_send_watchdog(WATCHDOG_ACTION_SHUTDOWN, &error_abort);\n qemu_system_powerdown_request();\n break;\n \n- case WDT_POWEROFF: /* same as 'quit' command in monitor */\n+ case WATCHDOG_ACTION_POWEROFF: /* same as 'quit' command in monitor */\n qapi_event_send_watchdog(WATCHDOG_ACTION_POWEROFF, &error_abort);\n exit(0);\n \n- case WDT_PAUSE: /* same as 'stop' command in monitor */\n+ case WATCHDOG_ACTION_PAUSE: /* same as 'stop' command in monitor */\n /* In a timer callback, when vm_stop calls qemu_clock_enable\n * you would get a deadlock. Bypass the problem.\n */\n@@ -131,19 +123,27 @@ void watchdog_perform_action(void)\n qemu_system_vmstop_request(RUN_STATE_WATCHDOG);\n break;\n \n- case WDT_DEBUG:\n+ case WATCHDOG_ACTION_DEBUG:\n qapi_event_send_watchdog(WATCHDOG_ACTION_DEBUG, &error_abort);\n fprintf(stderr, \"watchdog: timer fired\\n\");\n break;\n \n- case WDT_NONE:\n+ case WATCHDOG_ACTION_NONE:\n qapi_event_send_watchdog(WATCHDOG_ACTION_NONE, &error_abort);\n break;\n \n- case WDT_NMI:\n+ case WATCHDOG_ACTION_INJECT_NMI:\n qapi_event_send_watchdog(WATCHDOG_ACTION_INJECT_NMI,\n &error_abort);\n nmi_monitor_handle(0, NULL);\n break;\n+\n+ default:\n+ assert(0);\n }\n }\n+\n+void qmp_watchdog_set_action(WatchdogAction action, Error **errp)\n+{\n+ watchdog_action = action;\n+}\ndiff --git a/hw/watchdog/wdt_diag288.c b/hw/watchdog/wdt_diag288.c\nindex 47f289216a..1475743527 100644\n--- a/hw/watchdog/wdt_diag288.c\n+++ b/hw/watchdog/wdt_diag288.c\n@@ -57,9 +57,9 @@ static void diag288_timer_expired(void *dev)\n * the BQL; reset before triggering the action to avoid races with\n * diag288 instructions. */\n switch (get_watchdog_action()) {\n- case WDT_DEBUG:\n- case WDT_NONE:\n- case WDT_PAUSE:\n+ case WATCHDOG_ACTION_DEBUG:\n+ case WATCHDOG_ACTION_NONE:\n+ case WATCHDOG_ACTION_PAUSE:\n break;\n default:\n wdt_diag288_reset(dev);\ndiff --git a/include/sysemu/watchdog.h b/include/sysemu/watchdog.h\nindex 72a4da07a6..677ace3945 100644\n--- a/include/sysemu/watchdog.h\n+++ b/include/sysemu/watchdog.h\n@@ -23,15 +23,7 @@\n #define QEMU_WATCHDOG_H\n \n #include \"qemu/queue.h\"\n-\n-/* Possible values for action parameter. */\n-#define WDT_RESET 1 /* Hard reset. */\n-#define WDT_SHUTDOWN 2 /* Shutdown. */\n-#define WDT_POWEROFF 3 /* Quit. */\n-#define WDT_PAUSE 4 /* Pause. */\n-#define WDT_DEBUG 5 /* Prints a message and continues running. */\n-#define WDT_NONE 6 /* Do nothing. */\n-#define WDT_NMI 7 /* Inject nmi into the guest. */\n+#include \"qapi-types.h\"\n \n struct WatchdogTimerModel {\n QLIST_ENTRY(WatchdogTimerModel) entry;\n@@ -46,7 +38,7 @@ typedef struct WatchdogTimerModel WatchdogTimerModel;\n /* in hw/watchdog.c */\n int select_watchdog(const char *p);\n int select_watchdog_action(const char *action);\n-int get_watchdog_action(void);\n+WatchdogAction get_watchdog_action(void);\n void watchdog_add_model(WatchdogTimerModel *model);\n void watchdog_perform_action(void);\n \ndiff --git a/qapi-schema.json b/qapi-schema.json\nindex f3af2cb851..f5db401838 100644\n--- a/qapi-schema.json\n+++ b/qapi-schema.json\n@@ -3143,3 +3143,12 @@\n # Since 2.9\n ##\n { 'command': 'query-vm-generation-id', 'returns': 'GuidInfo' }\n+\n+##\n+# @watchdog-set-action:\n+#\n+# Set watchdog action\n+#\n+# Since 2.11\n+##\n+{ 'command': 'watchdog-set-action', 'data' : {'action': 'WatchdogAction'} }\n", "prefixes": [ "v3", "2/2" ] }